Structural and temperature dependence of physical properties of Ni2MnM (M = Al, Ga and In) Heusler alloys
- 1. Hanyang University, Seoul (Korea, Republic of)
- 2. Hoseo University, Asan (Korea, Republic of)
- 3. Institute of Metal Physics, National Academy of Sciences of Ukraine, Kiev (Ukraine)
Description
Some physical properties of bulk Heusler alloys, Ni2MnM (M = Al, Ga and In), and their thin films were studied. Structural characterization was performed by using X-ray diffraction. The optical conductivity spectra of the bulk samples exhibit a two-peak structure in the 0.5 - 4.5 eV energy range. The evolution of the high-energy peak can be explained by the variation of the lattice constant. A SQUID magnetometer was employed to measure the temperature dependence of the magnetic properties in the 5 - 395 K temperature range. The disordered phase of the Ni2MnGa and Ni2MnIn alloy films behaves like Pauli paramagnets. Annealing of the disordered films restores the ordered structure, with almost full recovery of the magnetic and transport properties of the ordered films.
Additional details
Publishing Information
- Journal Title
- Journal of the Korean Physical Society
- Journal Volume
- 45
- Journal Issue
- 1
- Series
- 29 refs, 4 figs
- Journal Page Range
- p. 34-37
- ISSN
- 0374-4884
INIS
- Country of Publication
- Korea, Republic of
- Country of Input or Organization
- Korea, Republic of
- INIS RN
- 41098701
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- ELECTRONIC STRUCTURE; HEUSLER ALLOYS; MAGNETOMETERS; NICKEL ALLOYS; OPTICAL PROPERTIES; ORDER-DISORDER TRANSFORMATIONS; PARAMAGNETISM; PHYSICAL PROPERTIES; SQUID DEVICES; TEMPERATURE DEPENDENCE; THIN FILMS; X-RAY DIFFRACTION
- Descriptors DEC
- ALLOYS; ALUMINIUM ALLOYS; COHERENT SCATTERING; COPPER ALLOYS; COPPER BASE ALLOYS; CORROSION RESISTANT ALLOYS; DIFFRACTION; ELECTRONIC EQUIPMENT; EQUIPMENT; FILMS; FLUXMETERS; MAGNETISM; MANGANESE ALLOYS; MEASURING INSTRUMENTS; MICROWAVE EQUIPMENT; PHASE TRANSFORMATIONS; PHYSICAL PROPERTIES; SCATTERING; SUPERCONDUCTING DEVICES; TRANSITION ELEMENT ALLOYS